Patent GB-190223232-A (GB)
Title: Improvements in Paper Feeding Machines
Filed: 1902-10-24
Granted: 1902-12-18
Abstract: 23,232. Lake, H. H., [Economic Machine Co.]. Oct. 24. Feeding sheets.-Relates to apparatus for sideregistering sheets, such as is employed between a feed - mechanism and a printing - machine, and especially consists of means for registering two sheets fed side by side. Fig. 1 shows a side elevation, and Fig. 5 a plan, of the registering-apparatus applied to the feed-table A of the printing-machine, over which table the sheets are fed to the cylinder B. The sheets are carried from the delivery end C of the feeding-machine, to the slant board a at the front end of the table, by a set of tapes which pass over the roller d<5>, round intermediate lapping-rollers d<7>, under the pressure rollers d<8>, and round the roller d<9>. The frame D supporting the apparatus is carried at its upper end in standards d<1> on the table A, and at its lower end is provided with screws d<2> resting on the table. On a transverse bar e are fixed under-guides e', which project rearwards and upwards into the path of the upper part of the carrying-tapes. Above the guides e<1> are the preliminary front guides E, which operate to arrest and square the sheets before they pass to the side-registering devices. The guides E are attached to the depending arms e<3> and rods e<4> of a rock-shaf t e<2> operated by a cam to lift the guides at the proper time to release the sheet. There are, preferably, two or more of these preliminary front guides on each side of the centre line of the apparatus. While the two sheets are arrested by the guides, they are spread apart sufficiently to enable them to clear the centre stops of the registering-mechanism by a pair of spreading-arms F having wings f projecting above the level of the carrying-tapes. The arms F are pivoted on a sleeve fixed on the central portion of the bar e, and are held in closed position, one against the other, by a spring f<3>. One of the arms is connected by a rod g<1> and lever g<2> to a camoperated rod g<3>. A projection g<5> on one arm engages a projection g<6> on the other, so that when one arm is moved outwards by the cam it moves the other arm similarly. The side registering devices comprise two sets or pairs of pushers, which simultaneously push the sheets inwards against adjustable registering guides or stops near the central line of the apparatus. The upper set is mounted on a transverse frame H composed of a pair of guide-bars h and sleeves h<2>, by which they are supported on the side bars of the frame D. The two fixed centre guides or stops are carried by plates I adjustable on the bars h. Each stop is formed by a pin i, Fig. 26, fixed in a head i<1> and projecting down into a hole in the inner end of the plate I. The head i<1> is screwed down to the plate I. Each step carries a guide-shield i<9> inclined upwards to guide the sheet to the stoppin. The plates I are frictionally held down on the bars h by bolts and spring plates and washers, and each plate is connected to an adjusting-rod passing out to the side of the apparatus, and provided with adjusting and clamping nuts. The sheets are pushed against the stops i by pushers on reciprocating plates M on guide-plates M' adjustably fixed on the bars h. On each plate M are two standards, Fig. 14, between which a depending pin O is pivoted, this pin having an arm o<2> with an adjustable weight o<3>,which holds the pin O against a stop on the slide M. The pin O engages the sheet as the slide M is moved inwards, and yields when the inner edge of the sheet engages the stop, preventing buckling of the sheet. The slides M are provided with inclined shields o<5>, under which the edges of the sheets pass. The surfaces of the slide M are inclined at m<2> to raise the surfaces to the level of the tapes, and the surfaces of the plates I are similarly inclined near the stops i. Each slide M has two downwardly-projecting lugs p, which engage a sleeve adjustably fixed on a rod p<3>. The rods p<3> are pulled inwards by springs p<4>, and their outer ends are connected to levers p<7> connected to rods p<8> operated by cams p<10>. For small adjustments, the slide M may be adjusted on the rod p<3>, but for greater ones, the guide-plate M' is adjusted on the bars h. The lower set of devices is mounted on a frame in a recess in the slant board a, and is substantially the same as that described. The centre-stop plates I are adjusted by levers q connected to rods q<3> provided with adjusting and clamping nuts. The actuating-rods p<3> of these push devices are connected by chains p<14> to the rods p<8>, so that the two sets of registering-devices are actuated simultaneously. Before the sheets are registered by the above devices, they are arrested and squared against the front guides or stops b on a rock-shaft b<1>. The stops bare then swung away, and the registered sheets pass on to the drop guides b<5>, which extend over the under guides b<4> secured to the underside of the table A. The drop guides are raised in the usual way, and the sheet is taken by the grippers of the cylinder B.